EP1366384B1 - Connexion de cable etanche - Google Patents

Connexion de cable etanche Download PDF

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Publication number
EP1366384B1
EP1366384B1 EP01975527A EP01975527A EP1366384B1 EP 1366384 B1 EP1366384 B1 EP 1366384B1 EP 01975527 A EP01975527 A EP 01975527A EP 01975527 A EP01975527 A EP 01975527A EP 1366384 B1 EP1366384 B1 EP 1366384B1
Authority
EP
European Patent Office
Prior art keywords
cable
seal
housing
seals
sealed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01975527A
Other languages
German (de)
English (en)
Other versions
EP1366384A2 (fr
Inventor
Maurice Kordahi
David Giordano
Robert Stix
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SubCom LLC
Original Assignee
Tyco Telecommunication US Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tyco Telecommunication US Inc filed Critical Tyco Telecommunication US Inc
Priority to EP04077210A priority Critical patent/EP1491930B1/fr
Publication of EP1366384A2 publication Critical patent/EP1366384A2/fr
Application granted granted Critical
Publication of EP1366384B1 publication Critical patent/EP1366384B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2558—Reinforcement of splice joint
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4415—Cables for special applications
    • G02B6/4427—Pressure resistant cables, e.g. undersea cables
    • G02B6/4428—Penetrator systems in pressure-resistant devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/013—Sealing means for cable inlets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
    • H02G15/115—Boxes split perpendicularly to main cable direction

Definitions

  • the present invention relates to cable connections and more particularly to a sealed cable joint for joining fiber optic cables.
  • Fiber optic cables are deployed across many miles of ocean and other large bodies of water to establish communication networks. Because these fiber optic cables cannot be made and deployed in infinite length, sections of the cables must be attached together to extend across large distances. Cable joints are used to connect fiber optic cables together, for example, when splicing the optical fibers. Although the cable joints are designed to protect the optical fibers and splice connection in a high-pressure, underwater environment, there are a number of cases where additional protection is needed.
  • hydrogen may enter the cable joint and adversely affect the optical fibers exposed within the cable joint.
  • the hydrogen is generated near the cable joint from galvanic corrosion of metal parts, magnetohydrodynamic effects, and microbial activity near the connection of the cable with the cable joint.
  • the hydrogen causes optical loss in the optical fiber, which is known in the art as hydrogen induced attenuation. If hydrogen penetrates a significant distance along the optical fibers, then the hydrogen causes a significant amount of hydrogen induced attenuation in the optical fiber.
  • U.S. Patent No. 6,028,974 One type of seal used in an underwater cable joint to seal against the penetration of hydrogen is disclosed in U.S. Patent No. 6,028,974.
  • This cable joint includes a casing 130, an anchorage 120, a casing loading ring 150, and an anchorage loading ring 145.
  • a seal ring 140 is positioned between the casing 130 and anchorage 120 and the respective casing loading ring 150 and anchorage loading ring 145. The purpose of the seal ring 140 is to prevent hydrogen from entering the cable junction.
  • U.S. Pat. No. 6,028,974 has some drawbacks.
  • a large amount of force is required to install the seal ring 140.
  • the casing 130 and the anchorage 120 have respective circular ridges 260, 263 for embedding into the seal ring 140.
  • U.S. Pat. No. 6, 028, 974 discloses an embodiment of the cable junction 100 for an optical fiber cable 110 having diameter of 14mm which will require a load of approximately 180 kN to properly embed the circular ridges 260, 263 having sharp leading edges 265, 267 in the seal ring 140.
  • seal ring 140 is positioned in a gap between the casing 130 and loading ring 150 and is exposed to the outside of the casing 130. Thus, this seal ring 140 may be susceptible to failure.
  • U.S. Pat. No. 4,733,935 discloses another example of a Sealed cable connection for underwater use.
  • a sealed cable joint for connecting first and second cables, said sealed cable joint comprising a housing having first and second ends and an inner surface defining an inner region, first and second cable socket bodies positioned within said inner region of said housing at said first and second ends of said housing, each of said first and second cable socket bodies including a passageway receiving a respective one of said first and second cables, first and second seal securing members positioned within said inner region of said housing at said first and second ends of said housing and secured into contact with respective said first and second socket bodies, and at least first and second seals, characterized in that said first seal being positioned against said inner surface of said housing at an interface between said first cable socket body and said first seal securing member, said second seal being positioned against said inner surface of said housing at an interface between said second cable socket body and said second seal securing member, wherein said first and second seals are compressed between said first and second seal securing members and said first and second cable socket bodies, respectively, for sealing against said inner surface of said housing.
  • each of the cable socket bodies includes a seating portion and a radial portion extending radially from the seating portion.
  • the seal securing members are seated on the seating portion and against the radial portion of the respective cable socket bodies.
  • the radial portion of each of the cable socket bodies includes an outer groove holding the respective seals.
  • the seal securing member is preferably secured to the housing.
  • each of the seal securing members is secured against an end face of the respective cable socket bodies.
  • the seal securing members preferably include an outer groove holding the respective seals.
  • the sealed cable joint according to this embodiment preferably further comprises at least first and second inner seals.
  • Each of the seal securing members includes an inner groove spaced radially inwardly from the outer groove to hold the respective inner seals.
  • the socket bodies are preferably secured to the housing.
  • the preferred embodiment of the seal includes an annular helically-wound spring and at least one lining around the helically-wound spring.
  • the sealed cable joint further comprises first and second cable seals positioned around the respective cables and within the passageways in the respective cable socket bodies.
  • the cable seals preferably have an outer conical shape.
  • FIG. 1 is a perspective view of a sealed cable joint, according to the present invention.
  • FIG. 2 is a cross-sectional view of a sealed cable connection, according to one embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of a sealed cable connection, according to another embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of a seal, according to one embodiment of the present invention.
  • FIG. 5 is a side view of a cable seal used in the sealed cable joint, according to one embodiment of the present invention.
  • FIG. 6 is a schematic, exploded view of the sealed cable joint being assembled, according to one method.
  • FIG. 7 is a schematic, partially cross-sectional view of the sealed cable joint shown in FIG. 6, being assembled.
  • a sealed cable joint 10, FIG. 1, according to the present invention is used to connect two cables 12a, 12b underwater.
  • the sealed cable joint 10 includes a housing 20 and first and second sealed cable connections 16a, 16b connecting the cables 12a, 12b to the housing 20 at first and second ends 22a, 22b of the housing 20.
  • the cable joint 10 also includes a shelf or center section 24 located within the housing 20.
  • the sealed cable connections 16a, 16b are sealed against the housing 20 from the inside, as will be described in greater detail below.
  • the cables 12a, 12b are fiber optic cables that are spliced at the center section 24, and the sealed cable joint 10 prevents hydrogen from entering into the sealed cable joint 10 and adversely affecting the optical fibers exposed within the cable joint 10.
  • the concepts of the present invention can also be used in connecting other types of cables and to substantially prevent other types of gases or fluids from entering or escaping.
  • the sealed cable connection 16, FIGS. 2 includes a cable socket body 30 located within the housing 20 at one end 22.
  • the cable socket body 30 includes a seating portion 32 and a radial portion 34 extending radially from the seating portion 32.
  • the cable 12 can be connected to the cable socket body 30 using any known cable termination arrangement.
  • a generally ring-shaped seal securing member 36 is seated on the seating portion 32 and extends around the cable socket body 30.
  • a generally ring-shaped seal 40 is positioned against the inner surface 28 of the housing 20 and between the radial portion 34 of the cable socket body 30 and the seal securing member 36.
  • the seal securing member 36 is secured to the housing 20, for example, using pins 42.
  • the pins 42 preferably extend through radial apertures 26 in the housing 20 and into radial cavities 38 within the seal securing member 36.
  • the cable socket body 30 is secured to the seal securing member 36, for example, using torque bolts 44.
  • the torque bolts 44 preferably extend through longitudinal apertures 46 in the seal securing member 36 and are threaded into threaded cavities 48 within the socket body 30.
  • preferably nine torque bolts are circumferentially spaced around the seal securing members 36. The seal 40 is thus compressed between the cable socket body 30 and the seal securing member 36 and sealed against the inner surface 28 of the housing 20.
  • the exemplary embodiment shows a groove 49 within the radial portion 34 of the socket body 30 that receives the seal 40.
  • the seal 40 can be seated in a groove in the seal securing member 36 or within matching grooves in both the radial portion 34 and the seal securing member 36 (not shown).
  • the sealed cable connection 16' includes a socket body 50 located within the housing 20 at one end 22.
  • the socket body 50 includes a housing engaging portion 54 that engages the inner surface 28 of the housing 20.
  • the cable 12 can be connected to the cable socket body 50 using any known cable termination arrangement.
  • One or more seals 60, 62 are positioned between a seal securing member 52 and an end face 56 of the socket body 50.
  • an outer seal 60 is positioned against the housing inner surface 28 and between the seal securing member 52 and the socket body 50.
  • An inner seal 62 is positioned between the seal securing member 52 and the end face 56 of the housing engaging portion 54 and is spaced radially inwardly from the outer seal 60.
  • the outer and inner seals 60, 62 are seated in outer and inner grooves 64, 66 respectively, within the seal securing member 52. Alternatively, grooves can be located in the end face 56 of the socket body 50 (not shown).
  • the housing engaging portion 54 is secured to the housing 20, for example, using pins 42 extending through radial apertures 26 in the housing 20 into radial cavities 58 in the socket body 50.
  • torque bolts 44 extend through longitudinal cavities 57 in the socket body 50 and into threaded cavities 68 in the seal securing member 52.
  • FIG. 3 shows the sealed cable connection 50 before compression of the seals 60, 62 where the seal securing member 52 is loosely secured to the socket body.
  • One advantage of the present invention is the ability to pre-assemble the socket body 50, the seal securing member 52, and the seals 60, 62 without actually sealing the assembly.
  • the pre-assembly can be inserted into the housing 20 as a single unit, simplifying the overall assembly.
  • the torque bolts 44 are tightened, the seal securing member 52 is pulled against the end face 56 of the socket body 50 and the seals 60, 62 are compressed.
  • the embodiment shown in FIG. 2 can also be assembled in this way.
  • the exemplary embodiment of the resilient metal seal 70 comprises a helically wound spring 72 with one or more metal linings 74 formed at least partially around the toroidal section of the spring 72.
  • the metal lining 74 is preferably made of a malleable metal, such as copper, silver, aluminum, or other suitable materials.
  • the exemplary embodiment shows a resilient metal seal having a particular shape and design, any type of seal made of any type of sealing material can be used.
  • each of the sealed cable connections 16, 16' includes a cable seal 80 positioned around the cable 12 and within passageways in the cable socket bodies 30, 50.
  • Each cable seal 80 FIG. 5, preferably has an outer conical surface 82 that matches a conical surface within the passageway in the cable socket body 30, 50.
  • the cable seal 80 is preferably made of copper, although other suitable sealing materials can also be used.
  • the cable seal 80 is pressed into place, for example, using a powered press, and secured with a threaded retaining ring 90 (FIG. 2).
  • the cable seal 80 is preferably plastically deformed around the cable 12.
  • FIGS. 6 and 7 one method of assembling the sealed cable joint 10 using the sealed cable connection 16 is described.
  • the shelf or center section 24 and cable socket bodies 30 are inserted into the housing 20.
  • the seals 40 are then inserted over one end of the socket bodies 30 and into engagement with the radial portion 34 of the socket bodies 30.
  • Seal securing members 36 are then inserted over the cable socket bodies 30 and positioned against the seals 40.
  • the pins 42 are inserted through the housing 20 and into engagement with the seal securing members 36, securing the rings 36 within the housing 20.
  • Torque bolts 44 are then inserted through the seal securing members 36 and into the radial portions 34 of the socket bodies 30 (FIG. 6). When the torque bolts 44 are tightened, the cable socket bodies 30 and the seal securing members 36 are pulled together, thereby compressing the seals 40 and effecting a seal against the inside surface of the housing 20.
  • the socket body 30, the seal securing member 36, and the seal 40 are preassembled and loosely secured together with the torque bolts 44.
  • This pre-assembly is then inserted as a single unit into the housing 10 and the seal securing member 36 is secured to the housing 20 with the pins 42.
  • the torque bolts 44 can then be tightened to effect the seal.
  • the sealed cable connections of the present invention create a seal between the cable and the inside of the socket body.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Cable Accessories (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Processing Of Terminals (AREA)

Claims (14)

  1. Joint de câble étanche (10) pour accoupler un premier et un second câbles (12a, 12b), ledit joint de câble étanche (10) comprenant :
    une gaine (20) ayant une première et une seconde extrémités (22a, 22b) et une surface interne définissant une région interne ;
    un premier et un second corps de culots de câbles (30) positionnés à l'intérieur de ladite région interne de ladite gaine (20) au niveau desdites première et seconde extrémités de ladite gaine (20), chacun desdits premier et second corps de culots de câbles comprenant un passage recevant un câble respectif desdits premier et second câbles ;
    un premier et un second éléments de fixation de presse-étoupe (36) positionnés à l'intérieur de ladite région interne de ladite gaine (20) au niveau desdites première et seconde extrémités de ladite gaine (20) et fixés en contact avec lesdits premier et second corps de culots respectifs ;
    et au moins un premier et un second presse-étoupe (40), caractérisés en ce que ledit premier presse-étoupe est positionné contre ladite surface interne de ladite gaine (20) à une interface entre ledit premier corps de culot de câble (30) et ledit premier élément de fixation de presse-étoupe (36), ledit second presse-étoupe est positionné contre ladite surface interne de ladite gaine (20) à une interface entre ledit second corps de culot de câble (30) et ledit second élément de fixation de presse-étoupe (36), dans lequel lesdits premier et second presse-étoupe (40) sont comprimés entre lesdits premier et second éléments de fixation de presse-étoupe (36) et lesdits premier et second corps de culots de câbles, respectivement, pour assurer l'étanchéité contre ladite surface interne de ladite gaine (20).
  2. Joint de câble étanche selon la revendication 1 comprenant en outre un premier et un second presse-étoupe de câble positionnés autour desdits premier et second câbles respectifs et à l'intérieur desdits passages dans lesdits premier et second corps de culots de câbles respectifs.
  3. Joint de câble étanche selon la revendication 2, dans lequel lesdits presse-étoupe de câble ont chacun une forme conique externe.
  4. Joint de câble étanche selon la revendication 1, dans lequel chacun desdits presse-étoupe comprend un joint d'étanchéité métallique élastique.
  5. Joint de câble étanche selon la revendication 1, dans lequel chacun desdits presse-étoupe comprend un ressort hélicoïdal annulaire et au moins un revêtement entourant au moins partiellement ledit ressort hélicoïdal annulaire.
  6. Joint de câble étanche selon la revendication 5, dans lequel ledit revêtement est en cuivre.
  7. Joint de câble étanche selon la revendication 1, dans lequel lesdits éléments de fixation de presse-étoupe sont fixés auxdits corps de culots de câbles avec au moins un boulon de serrage au couple.
  8. Joint de câble étanche selon la revendication 1, dans lequel chacun desdits corps de culots de câbles comprend une partie d'assise et une partie radiale s'étendant dans le sens radial à partir de ladite partie d'assise, dans lequel lesdits premier et second éléments de fixation de presse-étoupe reposent sur ladite partie d'assise et contre ladite partie radiale desdits premier et second corps de culots de câbles respectifs.
  9. Joint de câble étanche selon la revendication 8, dans lequel ladite partie radiale de chacun desdits premier et second corps de culots de câbles comprend une rainure externe servant à maintenir lesdits premier et second presse-étoupe respectifs.
  10. Joint de câble étanche selon la revendication 8, dans lequel ledit élément de fixation de presse-étoupe est fixé à ladite gaine.
  11. Joint de câble étanche selon la revendication 1, dans lequel chacun desdits éléments de fixation de presse-étoupe est fixé contre une face d'extrémité desdits corps de culots de câbles respectifs.
  12. Joint de câble étanche selon la revendication 11, dans lequel chacun desdits premier et second éléments de fixation de presse-étoupe comprend une rainure externe servant à maintenir lesdits premier et second presse-étoupe respectifs.
  13. Joint de câble étanche selon la revendication 12, comprenant en outre au moins un premier et un second presse-étoupe internes, dans lequel chacun desdits premier et second éléments de fixation de presse-étoupe comprend une rainure interne espacée radialement vers l'intérieur de ladite rainure externe, et dans lequel ladite rainure interne de chacun des éléments de fixation de presse-étoupe maintient lesdits premier et second presse-étoupe internes respectifs.
  14. Joint de câble étanche selon la revendication 11, dans lequel lesdits corps de culots sont fixés à ladite gaine.
EP01975527A 2001-02-02 2001-09-21 Connexion de cable etanche Expired - Lifetime EP1366384B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04077210A EP1491930B1 (fr) 2001-02-02 2001-09-21 Connexion de cable etanche

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/776,081 US6584253B2 (en) 2001-02-02 2001-02-02 Sealed cable connection
US776081 2001-02-02
PCT/US2001/030375 WO2002063359A2 (fr) 2001-02-02 2001-09-21 Connexion de cable etanche

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP04077210A Division EP1491930B1 (fr) 2001-02-02 2001-09-21 Connexion de cable etanche

Publications (2)

Publication Number Publication Date
EP1366384A2 EP1366384A2 (fr) 2003-12-03
EP1366384B1 true EP1366384B1 (fr) 2004-11-10

Family

ID=25106401

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01975527A Expired - Lifetime EP1366384B1 (fr) 2001-02-02 2001-09-21 Connexion de cable etanche
EP04077210A Expired - Lifetime EP1491930B1 (fr) 2001-02-02 2001-09-21 Connexion de cable etanche

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP04077210A Expired - Lifetime EP1491930B1 (fr) 2001-02-02 2001-09-21 Connexion de cable etanche

Country Status (7)

Country Link
US (1) US6584253B2 (fr)
EP (2) EP1366384B1 (fr)
JP (2) JP4323805B2 (fr)
AU (1) AU2001294845A1 (fr)
CA (1) CA2402481C (fr)
DE (2) DE60139161D1 (fr)
WO (1) WO2002063359A2 (fr)

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US20040122280A1 (en) * 2002-12-19 2004-06-24 Forney Robert W. Optical probes
US6993239B2 (en) * 2003-10-03 2006-01-31 Avanex Corporation Optical modules employing glass-sealed fiber feedthru with C-seal
US7278789B2 (en) * 2005-09-08 2007-10-09 Tyco Telecommunications (Us) Inc. Undersea equipment housing with molded terminations
TW201006059A (en) * 2008-07-31 2010-02-01 Acbel Polytech Inc Water-proof assembly for wiring connections
US7906727B2 (en) * 2008-08-26 2011-03-15 Oceaneering International, Inc. Umbilical bullet connector
CA3009529C (fr) 2016-03-17 2018-12-11 Ormond Energy Innovations Inc. Terminaison de fibre optique de protection, systeme et son procede d'utilisation
WO2017182782A1 (fr) * 2016-04-18 2017-10-26 Global Marine Systems Limited Boîte de jonction
US11404815B2 (en) 2017-10-30 2022-08-02 Ormond Energy Innovations Inc. Sealed connector with triggered mating and method of using same
KR102346047B1 (ko) * 2021-05-07 2022-01-03 (주)한림이앤씨건축사사무소 공동주택의 배선용 지중전선의 파손감지 장치

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GB8419887D0 (en) * 1984-08-03 1984-09-05 Sterritt J L Sealed jointing apparatus
US4733935A (en) * 1985-02-08 1988-03-29 The Rochester Corporation Symmetrical connector for optical fiber cables in a hostile environment
GB8601278D0 (en) 1986-01-20 1986-02-26 British Telecomm Clamp assembly
FR2607939B1 (fr) 1986-12-05 1989-02-03 Cables De Lyon Geoffroy Delore Boite de raccordement pour cables a fibres optiques
JPH0416602Y2 (fr) * 1987-04-13 1992-04-14
FR2639720B1 (fr) * 1988-11-28 1992-09-04 Commissariat Energie Atomique Passage etanche pour fibres optiques
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US5185844A (en) * 1991-07-29 1993-02-09 At&T Bell Laboratories Closure for optical fiber connective arrangements and method of providing same
JPH0633108U (ja) * 1992-09-25 1994-04-28 アンリツ株式会社 光学モジュールの光ファイバ部気密構造
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JPH10284167A (ja) * 1997-04-02 1998-10-23 Seiwa Electric Mfg Co Ltd ケーブル接続具
FR2765298B1 (fr) * 1997-06-25 1999-07-23 Commissariat Energie Atomique Joint d'etancheite du type metallique composite a ressorts spiraux et son procede de fabrication
FR2779240A1 (fr) * 1998-06-02 1999-12-03 Framatome Connectors France Connecteur pour fibres optiques
US6028974A (en) 1998-08-10 2000-02-22 Alcatel Seal for underwater cable joint

Also Published As

Publication number Publication date
JP5159669B2 (ja) 2013-03-06
JP4323805B2 (ja) 2009-09-02
DE60139161D1 (de) 2009-08-13
CA2402481A1 (fr) 2002-08-15
US6584253B2 (en) 2003-06-24
JP2009116368A (ja) 2009-05-28
JP2004519005A (ja) 2004-06-24
AU2001294845A1 (en) 2002-08-19
EP1366384A2 (fr) 2003-12-03
DE60107120T2 (de) 2005-04-07
EP1491930B1 (fr) 2009-07-01
CA2402481C (fr) 2009-09-08
DE60107120D1 (de) 2004-12-16
EP1491930A3 (fr) 2005-01-19
EP1491930A2 (fr) 2004-12-29
US20020106168A1 (en) 2002-08-08
WO2002063359A3 (fr) 2003-09-18
WO2002063359A2 (fr) 2002-08-15

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